Title (en)

DETERMINING CYCLIC PREFIX (CP) EXTENSION AND LISTEN BEFORE TALK (LBT) TYPE FOR UPLINK TRANSMISSIONS

Title (de)

BESTIMMUNG DER ERWEITERUNG DES ZYKLISCHEN PRÄFIX (CP) UND DES LISTEN-BEFORE-TALK (LBT)-TYPS FÜR UPLINK-ÜBERTRAGUNGEN

Title (fr)

DÉTERMINATION DE L'EXTENSION DU PRÉFIXE CYCLIQUE (CP) ET DU TYPE DE TECHNIQUE ÉCOUTER AVANT DE PARLER (LBT) POUR DES TRANSMISSIONS DE LIAISON MONTANTE

Publication

EP 3944547 A1 20220126 (EN)

Application

EP 21177543 A 20210603

Priority

US 202063056409 P 20200724

Abstract (en)

Systems, methods, apparatuses, and computer program products for cyclic prefix (CP) extension and listen before talk (LBT) type for uplink transmissions. Specifically, certain embodiments may provide for applying a CP and/or a LBT when DCI schedules two discontinuous uplink transmissions. For example, certain embodiments may provide for determining the LBT type and CP extension for jointly scheduled aperiodic sounding reference signal (A-SRS) and physical uplink shared channel (PUSCH)/physical uplink control channel (PUCCH) transmissions. When the two or more transmissions are non-consecutive, the first one of the transmissions may apply the CP extension and the LBT type indicated by the scheduling downlink control information (DCI). For the second transmission, the CP extension may depend on the CP extension indicated in the DCI.

IPC 8 full level

H04L 5/00 (2006.01); H04L 27/00 (2006.01); H04L 27/26 (2006.01); H04W 16/14 (2009.01); H04W 74/08 (2009.01)

CPC (source: CN EP US)

H04L 5/0048 (2013.01 - CN); H04L 5/0091 (2013.01 - EP); H04L 27/0006 (2013.01 - EP); H04L 27/2605 (2013.01 - EP); H04L 27/2607 (2013.01 - US); H04L 27/2646 (2013.01 - EP); H04W 72/23 (2023.01 - CN US); H04W 74/002 (2013.01 - US); H04W 74/0808 (2013.01 - CN); H04W 74/0816 (2013.01 - US); H04W 76/28 (2018.02 - US); H04L 27/26025 (2021.01 - EP); H04W 16/14 (2013.01 - EP)

Citation (search report)

• [AP] WO 2020197710 A1 20201001 - QUALCOMM INC [US]
• [XI] INTEL CORPORATION: "Channel access mechanism for NR-unlicensed", vol. RAN WG1, no. Reno, USA; 20191118 - 20191122, 9 November 2019 (2019-11-09), XP051823274, Retrieved from the Internet <URL:https://ftp.3gpp.org/tsg_ran/WG1_RL1/TSGR1_99/Docs/R1-1912197.zip R1-1912197 - Intel - Channel Access for NR-U.docx> [retrieved on 20191109]
• [A] MODERATOR (NOKIA): "Feature lead summary#2 on email discussion [101-e-NR-unlic-NRU- ChAcc-01]", vol. RAN WG1, no. e-meeting; 20200525 - 20200605, 6 June 2020 (2020-06-06), XP051893676, Retrieved from the Internet <URL:https://ftp.3gpp.org/tsg_ran/WG1_RL1/TSGR1_101-e/Docs/R1-2004995.zip R1-2004995 Remaining TPs [101-e-NR-unlic-NRU-ChAcc-01] v012-Moderator.docx> [retrieved on 20200606]
• [A] ERICSSON: "Additional corrections to NR-based access to unlicensed spectrum", vol. RAN WG1, no. e-Meeting; 20200525 - 20200605, 12 June 2020 (2020-06-12), XP051897592, Retrieved from the Internet <URL:https://ftp.3gpp.org/tsg_ran/WG1_RL1/TSGR1_101-e/Docs/R1-2005129.zip R1-2005129 CR 37.213 NR_unlic-Core post_RAN1#101-e.docx> [retrieved on 20200612]
• [A] MODERATOR (NOKIA): "Summary of [100b-e-NR-unlic-NRU-ChAcc-01] Email discussion/approval on clarifications to LBT with consecutive UL transmissions", vol. RAN WG1, no. e-meeting; 20200420 - 20200430, 28 April 2020 (2020-04-28), XP051878636, Retrieved from the Internet <URL:https://ftp.3gpp.org/tsg_ran/WG1_RL1/TSGR1_100b_e/Docs/R1-2002933.zip R1-2002933 [100b-e-NR-unlic-NRU-ChAcc-01] consec UL final.docx> [retrieved on 20200428]

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3944547 A1 20220126; CN 113973391 A 20220125; CN 113973391 B 20240510; US 2022030628 A1 20220127

DOCDB simple family (application)

EP 21177543 A 20210603; CN 202110846004 A 20210726; US 202117341508 A 20210608